t.Fatalf("expected: <nil>, got: %s", err)
	}
	if len(volInfos) != 2 {
		t.Fatalf("expected: 2, got: %d", len(volInfos))
	}
	volFound := false
	for _, info := range volInfos {
		if info.Name == "success-vol" {
			volFound = true
			break
		}
	}
	if !volFound {
		t.Errorf("expected: success-vol to be created")
	}

	// removing the path and simulating disk failure
	os.RemoveAll(path)

  EXPECT_EQ(TF_DEADLINE_EXCEEDED,
            static_cast<TF_Code>(tensorflow::error::DEADLINE_EXCEEDED));
  EXPECT_EQ(TF_NOT_FOUND, static_cast<TF_Code>(tensorflow::error::NOT_FOUND));
  EXPECT_EQ(TF_ALREADY_EXISTS,
            static_cast<TF_Code>(tensorflow::error::ALREADY_EXISTS));
  EXPECT_EQ(TF_PERMISSION_DENIED,
            static_cast<TF_Code>(tensorflow::error::PERMISSION_DENIED));